// Author: Robert Roebling
// RCS-ID: $Id$
// Copyright: (c) Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_IMAGE_H_
#include "wx/object.h"
#include "wx/string.h"
#include "wx/gdicmn.h"
+#include "wx/bitmap.h"
+#include "wx/hashmap.h"
#if wxUSE_STREAMS
-#include "wx/stream.h"
+# include "wx/stream.h"
#endif
+#if wxUSE_IMAGE
+
+#define wxIMAGE_OPTION_FILENAME wxString(_T("FileName"))
+
//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxImageHandler;
-#if wxUSE_LIBPNG
-class WXDLLEXPORT wxPNGHandler;
-#endif
-#if wxUSE_LIBJPEG
-class WXDLLEXPORT wxJPEGHandler;
-#endif
-class WXDLLEXPORT wxBMPHandler;
class WXDLLEXPORT wxImage;
-class WXDLLEXPORT wxBitmap;
-
//-----------------------------------------------------------------------------
// wxImageHandler
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxImageHandler: public wxObject
{
- DECLARE_DYNAMIC_CLASS(wxImageHandler)
-
public:
- wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
+ wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream );
- virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
-#endif
+ virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=-1 );
+ virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+
+ virtual int GetImageCount( wxInputStream& stream );
- inline void SetName(const wxString& name) { m_name = name; }
- inline void SetExtension(const wxString& ext) { m_extension = ext; }
- inline void SetType(long type) { m_type = type; }
- inline void SetMimeType(const wxString& type) { m_mime = type; }
- inline wxString GetName() const { return m_name; }
- inline wxString GetExtension() const { return m_extension; }
- inline long GetType() const { return m_type; }
- inline wxString GetMimeType() const { return m_mime; }
+ bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); }
+ bool CanRead( const wxString& name );
+#endif // wxUSE_STREAMS
+
+ void SetName(const wxString& name) { m_name = name; }
+ void SetExtension(const wxString& ext) { m_extension = ext; }
+ void SetType(long type) { m_type = type; }
+ void SetMimeType(const wxString& type) { m_mime = type; }
+ wxString GetName() const { return m_name; }
+ wxString GetExtension() const { return m_extension; }
+ long GetType() const { return m_type; }
+ wxString GetMimeType() const { return m_mime; }
protected:
- wxString m_name;
- wxString m_extension;
- wxString m_mime;
- long m_type;
-
+#if wxUSE_STREAMS
+ virtual bool DoCanRead( wxInputStream& stream ) = 0;
+#endif // wxUSE_STREAMS
+
+ wxString m_name;
+ wxString m_extension;
+ wxString m_mime;
+ long m_type;
+
+private:
+ DECLARE_CLASS(wxImageHandler)
};
//-----------------------------------------------------------------------------
-// wxPNGHandler
+// wxImageHistogram
//-----------------------------------------------------------------------------
-#if wxUSE_LIBPNG
-class WXDLLEXPORT wxPNGHandler: public wxImageHandler
+class WXDLLEXPORT wxImageHistogramEntry
{
- DECLARE_DYNAMIC_CLASS(wxPNGHandler)
-
public:
-
- inline wxPNGHandler()
- {
- m_name = "PNG file";
- m_extension = "png";
- m_type = wxBITMAP_TYPE_PNG;
- m_mime = "image/png";
- };
-
-#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream );
- virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
-#endif
+ wxImageHistogramEntry() : index(0), value(0) {}
+ unsigned long index;
+ unsigned long value;
};
-#endif
+
+WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry,
+ wxIntegerHash, wxIntegerEqual,
+ wxImageHistogram);
//-----------------------------------------------------------------------------
-// wxJPEGHandler
+// wxImage
//-----------------------------------------------------------------------------
-#if wxUSE_LIBJPEG
-class WXDLLEXPORT wxJPEGHandler: public wxImageHandler
+class WXDLLEXPORT wxImage: public wxObject
{
- DECLARE_DYNAMIC_CLASS(wxJPEGHandler)
-
public:
-
- inline wxJPEGHandler()
- {
- m_name = "JPEG file";
- m_extension = "jpg";
- m_type = wxBITMAP_TYPE_JPEG;
- m_mime = "image/jpeg";
- };
+ wxImage();
+ wxImage( int width, int height );
+ wxImage( int width, int height, unsigned char* data, bool static_data = FALSE );
+ wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream );
- virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
+ wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
+#endif // wxUSE_STREAMS
+
+ wxImage( const wxImage& image );
+ wxImage( const wxImage* image );
+
+#if wxUSE_GUI
+ // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead):
+ wxImage( const wxBitmap &bitmap );
+ wxBitmap ConvertToBitmap() const;
+#ifdef __WXGTK__
+ wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const;
#endif
-};
#endif
-//-----------------------------------------------------------------------------
-// wxBMPHandler
-//-----------------------------------------------------------------------------
+ void Create( int width, int height );
+ void Create( int width, int height, unsigned char* data, bool static_data = FALSE );
+ void Destroy();
-class WXDLLEXPORT wxBMPHandler: public wxImageHandler
-{
- DECLARE_DYNAMIC_CLASS(wxBMPHandler)
-
-public:
+ // creates an identical copy of the image (the = operator
+ // just raises the ref count)
+ wxImage Copy() const;
- inline wxBMPHandler()
- {
- m_name = "BMP file";
- m_extension = "bmp";
- m_type = wxBITMAP_TYPE_BMP;
- m_mime = "image/bmp";
- };
+ // return the new image with size width*height
+ wxImage GetSubImage( const wxRect& ) const;
-#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream );
-#endif
-};
+ // pastes image into this instance and takes care of
+ // the mask colour and out of bounds problems
+ void Paste( const wxImage &image, int x, int y );
-//-----------------------------------------------------------------------------
-// wxGIFHandler
-//-----------------------------------------------------------------------------
+ // return the new image with size width*height
+ wxImage Scale( int width, int height ) const;
-class WXDLLEXPORT wxGIFHandler : public wxImageHandler
-{
- DECLARE_DYNAMIC_CLASS(wxGIFHandler)
+ // rescales the image in place
+ wxImage& Rescale( int width, int height ) { return *this = Scale(width, height); }
-public:
+ // Rotates the image about the given point, 'angle' radians.
+ // Returns the rotated image, leaving this image intact.
+ wxImage Rotate(double angle, const wxPoint & centre_of_rotation,
+ bool interpolating = TRUE, wxPoint * offset_after_rotation = (wxPoint*) NULL) const;
- inline wxGIFHandler()
- {
- m_name = "GIF file";
- m_extension = "gif";
- m_type = wxBITMAP_TYPE_GIF;
- m_mime = "image/gif";
- };
+ wxImage Rotate90( bool clockwise = TRUE ) const;
+ wxImage Mirror( bool horizontally = TRUE ) const;
-#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream );
- virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
-#endif
-};
+ // replace one colour with another
+ void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
+ unsigned char r2, unsigned char g2, unsigned char b2 );
-//-----------------------------------------------------------------------------
-// wxImage
-//-----------------------------------------------------------------------------
+ // convert to monochrome image (<r,g,b> will be replaced by white, everything else by black)
+ wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const;
-class WXDLLEXPORT wxImage: public wxObject
-{
- DECLARE_DYNAMIC_CLASS(wxImage)
-
- friend class WXDLLEXPORT wxImageHandler;
+ // these routines are slow but safe
+ void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
+ unsigned char GetRed( int x, int y ) const;
+ unsigned char GetGreen( int x, int y ) const;
+ unsigned char GetBlue( int x, int y ) const;
-public:
+ // find first colour that is not used in the image and has higher
+ // RGB values than <startR,startG,startB>
+ bool FindFirstUnusedColour( unsigned char *r, unsigned char *g, unsigned char *b,
+ unsigned char startR = 1, unsigned char startG = 0,
+ unsigned char startB = 0 ) const;
+ // Set image's mask to the area of 'mask' that has <r,g,b> colour
+ bool SetMaskFromImage(const wxImage & mask,
+ unsigned char mr, unsigned char mg, unsigned char mb);
- wxImage();
- wxImage( int width, int height );
- wxImage( const wxString& name, long type = wxBITMAP_TYPE_PNG );
- wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
- wxImage( const wxString& name, const wxString& mimetype );
- wxImage( wxInputStream& stream, const wxString& mimetype );
-
- wxImage( const wxImage& image );
- wxImage( const wxImage* image );
-
- // these functions get implemented in /src/(platform)/bitmap.cpp
- wxImage( const wxBitmap &bitmap );
- wxBitmap ConvertToBitmap() const;
-
- void Create( int width, int height );
- void Destroy();
-
- wxImage Scale( int width, int height );
-
- // these routines are slow but safe
- void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
- unsigned char GetRed( int x, int y );
- unsigned char GetGreen( int x, int y );
- unsigned char GetBlue( int x, int y );
-
- virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_PNG );
- virtual bool LoadFile( const wxString& name, const wxString& mimetype );
+ static bool CanRead( const wxString& name );
+ static int GetImageCount( const wxString& name, long type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
#if wxUSE_STREAMS
- virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
- virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype );
+ static bool CanRead( wxInputStream& stream );
+ static int GetImageCount( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
#endif
- virtual bool SaveFile( const wxString& name, int type );
- virtual bool SaveFile( const wxString& name, const wxString& mimetype );
+ virtual bool SaveFile( const wxString& name, int type ) const;
+ virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
#if wxUSE_STREAMS
- virtual bool SaveFile( wxOutputStream& stream, int type );
- virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
+ virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+ virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
#endif
- bool Ok() const;
- int GetWidth() const;
- int GetHeight() const;
-
- char unsigned *GetData() const;
- void SetData( char unsigned *data );
-
- void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
- unsigned char GetMaskRed() const;
- unsigned char GetMaskGreen() const;
- unsigned char GetMaskBlue() const;
- void SetMask( bool mask = TRUE );
- bool HasMask() const;
-
- inline wxImage& operator = (const wxImage& image)
- { if ((*this) == image)
- return (*this);
- Ref(image);
- return *this; }
-
- inline bool operator == (const wxImage& image)
- { return m_refData == image.m_refData; }
- inline bool operator != (const wxImage& image)
- { return m_refData != image.m_refData; }
-
- static inline wxList& GetHandlers() { return sm_handlers; }
- static void AddHandler( wxImageHandler *handler );
- static void InsertHandler( wxImageHandler *handler );
- static bool RemoveHandler( const wxString& name );
- static wxImageHandler *FindHandler( const wxString& name );
- static wxImageHandler *FindHandler( const wxString& extension, long imageType );
- static wxImageHandler *FindHandler( long imageType );
- static wxImageHandler *FindHandlerMime( const wxString& mimetype );
-
- static void CleanUpHandlers();
- static void InitStandardHandlers();
+ bool Ok() const;
+ int GetWidth() const;
+ int GetHeight() const;
+
+ char unsigned *GetData() const;
+ void SetData( char unsigned *data );
+ void SetData( char unsigned *data, int new_width, int new_height );
+
+ // Mask functions
+ void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
+ unsigned char GetMaskRed() const;
+ unsigned char GetMaskGreen() const;
+ unsigned char GetMaskBlue() const;
+ void SetMask( bool mask = TRUE );
+ bool HasMask() const;
+
+#if wxUSE_PALETTE
+ // Palette functions
+ bool HasPalette() const;
+ const wxPalette& GetPalette() const;
+ void SetPalette(const wxPalette& palette);
+#endif // wxUSE_PALETTE
+
+ // Option functions (arbitrary name/value mapping)
+ void SetOption(const wxString& name, const wxString& value);
+ void SetOption(const wxString& name, int value);
+ wxString GetOption(const wxString& name) const;
+ int GetOptionInt(const wxString& name) const;
+ bool HasOption(const wxString& name) const;
+
+ unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ) const;
+
+ // Computes the histogram of the image and fills a hash table, indexed
+ // with integer keys built as 0xRRGGBB, containing wxImageHistogramEntry
+ // objects. Each of them contains an 'index' (useful to build a palette
+ // with the image colours) and a 'value', which is the number of pixels
+ // in the image with that colour.
+ // Returned value: # of entries in the histogram
+ unsigned long ComputeHistogram( wxImageHistogram &h ) const;
+
+ wxImage& operator = (const wxImage& image)
+ {
+ if ( (*this) != image )
+ Ref(image);
+ return *this;
+ }
+
+ bool operator == (const wxImage& image)
+ { return m_refData == image.m_refData; }
+ bool operator != (const wxImage& image)
+ { return m_refData != image.m_refData; }
+
+ static wxList& GetHandlers() { return sm_handlers; }
+ static void AddHandler( wxImageHandler *handler );
+ static void InsertHandler( wxImageHandler *handler );
+ static bool RemoveHandler( const wxString& name );
+ static wxImageHandler *FindHandler( const wxString& name );
+ static wxImageHandler *FindHandler( const wxString& extension, long imageType );
+ static wxImageHandler *FindHandler( long imageType );
+ static wxImageHandler *FindHandlerMime( const wxString& mimetype );
+
+ static void CleanUpHandlers();
+ static void InitStandardHandlers();
protected:
+ static wxList sm_handlers;
+
+private:
+ friend class WXDLLEXPORT wxImageHandler;
- static wxList sm_handlers;
-
+ DECLARE_DYNAMIC_CLASS(wxImage)
};
+
+extern void WXDLLEXPORT wxInitAllImageHandlers();
+
+WXDLLEXPORT_DATA(extern wxImage) wxNullImage;
+
+//-----------------------------------------------------------------------------
+// wxImage handlers
+//-----------------------------------------------------------------------------
+
+#include "wx/imagbmp.h"
+#include "wx/imagpng.h"
+#include "wx/imaggif.h"
+#include "wx/imagpcx.h"
+#include "wx/imagjpeg.h"
+#include "wx/imagtiff.h"
+#include "wx/imagpnm.h"
+#include "wx/imagxpm.h"
+#include "wx/imagiff.h"
+
+#endif // wxUSE_IMAGE
+
#endif
// _WX_IMAGE_H_
projects / wxWidgets.git / blobdiff